Question

if P(4, -7) and Q(-1, 5) then PQ =

Answer 1

Answer:

P=(4 , -7)

Q= ( -1 , 5)

PQ=√{(4+1)^2+(-7-5)^2}

=√{5^2+(-12)^2

=√(25+144)

=√169

=13

so, PQ=13 unit